cc: Make scheduling be driven by vsync for android webview.

content/browser/android/in_process/synchronous_compositor_output_surface.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 14 matching lines @@
 }
 
 namespace IPC {
 class Message;
 }
 
 namespace content {
 
 class FrameSwapMessageQueue;
 class SynchronousCompositorClient;
-class SynchronousCompositorExternalBeginFrameSource;
 class SynchronousCompositorOutputSurface;
 class WebGraphicsContext3DCommandBufferImpl;
 
 // Specialization of the output surface that adapts it to implement the
 // content::SynchronousCompositor public API. This class effects an "inversion
 // of control" - enabling drawing to be  orchestrated by the embedding
 // layer, instead of driven by the compositor internals - hence it holds two
 // 'client' pointers (|client_| in the OutputSurface baseclass and
 // |delegate_|) which represent the consumers of the two roles in plays.
 // This class can be created only on the main thread, but then becomes pinned
 // to a fixed thread when BindToClient is called.
 class SynchronousCompositorOutputSurface
     : NON_EXPORTED_BASE(public cc::OutputSurface) {
  public:
   explicit SynchronousCompositorOutputSurface(
       int routing_id,
       scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue);
   virtual ~SynchronousCompositorOutputSurface();
 
   // OutputSurface.
   virtual bool BindToClient(cc::OutputSurfaceClient* surface_client) override;
   virtual void Reshape(const gfx::Size& size, float scale_factor) override;
   virtual void SwapBuffers(cc::CompositorFrame* frame) override;
-
-  void SetBeginFrameSource(
-      SynchronousCompositorExternalBeginFrameSource* begin_frame_source);
+  virtual void Invalidate() override;
 
   // Partial SynchronousCompositor API implementation.
   bool InitializeHwDraw(
       scoped_refptr<cc::ContextProvider> onscreen_context_provider);
   void ReleaseHwDraw();
   scoped_ptr<cc::CompositorFrame> DemandDrawHw(
       gfx::Size surface_size,
       const gfx::Transform& transform,
       gfx::Rect viewport,
       gfx::Rect clip,
       gfx::Rect viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority);
   void ReturnResources(const cc::CompositorFrameAck& frame_ack);
   scoped_ptr<cc::CompositorFrame> DemandDrawSw(SkCanvas* canvas);
   void SetMemoryPolicy(size_t bytes_limit);
+  void SetInvalidateCallback(const base::Closure& callback);
   void SetTreeActivationCallback(const base::Closure& callback);
   void GetMessagesToDeliver(ScopedVector<IPC::Message>* messages);
 
  private:
   class SoftwareDevice;
   friend class SoftwareDevice;
 
   void InvokeComposite(const gfx::Transform& transform,
                        gfx::Rect viewport,
                        gfx::Rect clip,
                        gfx::Rect viewport_rect_for_tile_priority,
                        gfx::Transform transform_for_tile_priority,
                        bool hardware_draw);
   bool CalledOnValidThread() const;
 
   const int routing_id_;
   bool registered_;
 
   gfx::Transform cached_hw_transform_;
   gfx::Rect cached_hw_viewport_;
   gfx::Rect cached_hw_clip_;
   gfx::Rect cached_hw_viewport_rect_for_tile_priority_;
   gfx::Transform cached_hw_transform_for_tile_priority_;
 
   // Only valid (non-NULL) during a DemandDrawSw() call.
   SkCanvas* current_sw_canvas_;
 
   cc::ManagedMemoryPolicy memory_policy_;
 
-  cc::OutputSurfaceClient* output_surface_client_;
   scoped_ptr<cc::CompositorFrame> frame_holder_;
 
   scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue_;
 
-  SynchronousCompositorExternalBeginFrameSource* begin_frame_source_;
+  base::Closure invalidate_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_